Albebt abbe g-biswold



Oct. 16, 1923.

A. A. GRISWOLD ROLL ROOFING FASTENER Filed June 7. 1922 IN VE N TUE JW/MQJM Patented Oct. 16, 1923.

UNITED STATES ALBERT ABBE GRISWOLD, OF PROVIDENCE, RHODE ISLAND.

ROLL-ROOFING FASTENEB.

Application filed June 7, 1922. Serial No. 566,618.

To all whom it may concern Be it known that I, Annnnr Assn Gersworn, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful improvement in Roll-Roofing Fasteners, of which the following is a specification.

My invention has reference to an improvement in means for fastening roofing material, such as roll roofing, to the roofs of buildings, without the use ofnails.

In the usual means for securing roll roofing to roofs, sidings and the like, the roll roofing is usually laid in strips lengthwise of the roof, the lower edge of an upper course overlapping the upper edge of the next lower course. The roll roofing is then secured by driving nails through it into the roof or siding. The nail holes thus formed in the roll roofing will cause it to leak sooner or later thereby ruining the utility of the roll roofing. As the roll roofing is laid on the roof before nailing the nails must be driven blind and some of the nails will strike bad nailing, such as cracks, spaces between boards and knot-holes in the roof boards and nine tenths of all roofing leaks are caused by nail holes through the roofing material.

The object of my iuven Ion is to improve the means for securing roll roofing or the li e to roofs, thereby eliminating the driving of nails or the like, through the roll roofing.

A further object of myinvention is to construct such means for securing roll roof ing to roofs. whereby after a strip of roll roofing is laid, the part of such means that is driven into the roof, allows the roof boards to be in plain sight of the roofer and is driven into the roof above the edge of and not through the roll roofing. Another object of my invention is to construct such means for fastening roll roofing to roofs, whereby the upper edge of each under course is clamped to the roof and the lower edge of each upper course is fastened to the roof, without penetrating the under course of roll roofing, under the over-lap of the upper course.

My invention consists in the peculiar and novel construction of a roll roofing fastener which eliminates the use of nails or the like for securing roll roofing to roofs, said roll roofing fastener having details of construction will be more fully set forth hereinafter and claimed.

Figure 1 is a plan view'reduced, of a portion of a roof covered with roll roofing which is secured in place with my improved roll roofing fasteners.

Figure 2 is an end view of Figure 1.

Figure 8 is a side view of the upper fastening member.

Figure 1 is an end view of'the upper fastoning member.

Figure 5 is a detail sectional view through roof boards, roll roofing, upper fastening member and showing the under fastening member in full lines.

Figure 6 is a perspective view of the under fastening member, and

Figure 7 is a perspective view of a modified form of under fastening member.

In the drawing 8, 8 indicates the roof boards, 9, 9 the roll roofing of any suitable material, and 10 my improved roll roofing fastener which consists of an upper fastening member 11 and an under fastening member 12. The roof boards 8, 8 may also represent the sheathing on the outer walls of a building.

The roll roofing 9. 9 is'usually laid in strips lengthwise of the roof, first a narrow strip about three inches wide at the eaves edge and then the strips are laid full width. the lower edge of each upper course overlapping the upper edge of the next lower course, as shown in Figures 1 and 2.

The upper fastening member 11 is in the form of a hollow, preferably sheet metal cleat having elongated spring sides 13, 13 which are turned under and towards each other, forming oppositely disposed under edges 14, 14:, closed ends 15, 15 each having a pointed member 1.6 and each being secured to the cleat at its upper portion only, thereby allowing the spring sides 13, 13 to have aspring tension their entire length. The oppositely disposed edges 14; 14 form a narrow central longitudinal opening which extends the entire length of the upper fastening member.

The under fastening member 12 is constructed to have a thin elongated flattened body 17 on one end of which is a comparatively long pointed member 18 at rightan into roof boards or the like and on the opposite end, at right angles to the body and in oppositely disposedrelation to the pointed member 18, a comparatively short pointed member 19 having an annular groove 20, adjacent the point, as shown in Figure 6.

The modified form of under fastening member 12 has a short pointed member 21 in the same direction, adjacent to and parallel with the pointed 'inember 18, shown in Figure 7. p v

1n securingroll roofing to roofs with my improved roll roofing fasteners, a narrow strip of roll roofing is first laid along the cave edge of the roof. For this narrow strip of roll. roofing the modified. form of under fastening member 12, as shown in Figure T, is preferably used. The body 17' of the tening member is placed over the strip of roll roofing with the pointed member 18 at the upper edge of the roll roofing and the pointed member 18 driven into the roof boards and the pointed member 21 simultaneously forced into the roll roofing, thereby clamping and fastening the strip of roll roofing to the roof, as shown in gure 5. A plurality of the lower fastening members are thus used, clamping and fastening the strip of roll roofing, a predetermined distance apart the entire length of the roll roofing. The first course of full width roll roofing is now placed over the narrow strip of roll roofing, with. the lower edges coinciding, and the roll roofing forced downwards over the pointed members 19, 19, of the under fastening member so that the points protrude through the roll roofing. An upper fastening member 11 is now forced downwards 'over the pointed member 19,.

v which enters the opening between the edges ll, 14;, until the edges 14:, 14rsnap into the groove 20 in the pointed member 19, thereby locking the upper and lower fastening members together and simultaneously the end pointed members 16, 16 of the upper fastening member enter the roll roofing and hold the ends of the upper fastening member in place. These operations in using my im proved roll roofing fasteners are repeated for each course of roll roofing laid, clamp ing downuthe upper edge portion of eachlower course and fastening down the lower overlapping edge portion of each upper course and as the overlapping lower edge portion of the next upper course is the only part of the'roll roofing that is penetrated by the fasteners, a water tight roof is produced with the usual form of roll roofing and without the use of nails, which penetrate through the roll roofing into the roof boards. The upper fastening member 11 is sufficiently long so that the lower fastening member may be driven into the roof boards at any point lengthwise of the upper fasten ing Il'itzlilbGI', thereby avoiding cracks, spaces 1 wween boards and knot-holes in the roof rds.

.ving thus described my invention 1 a roof construction and the like strips of roll roofing, means for the roll roofing to the roof, conof roll roofing fasteners each com A spaced under and upper fastening members the under fastening member hav- I- a roof penetrating portion, a roll roofing clznnping portion and a portion with locking means and the upper fastening member having means for locking it to the locking of the under fastening member, for a irpose as described. 7 2. In a roof construction and the like Oi'Ol'lttPlJlllg strips of roll roofing, means for securing the roll roofing to the roof consisting of roll roofing fasteners each comprising spaced under and upper fastening members the under fastening member hava pointed member adapted to be driven into the roof outside of the upper edge of the roll roofing, a roll roofing clamping member, a roll roofing fastening member and a roll roofing penetrating member with looking means and the upper fastening member having spring means-for looking it to the locking means of the under fastening memher, for the purpose as described.

Means for fastening overlapping strips of roll roofing to roofs, consisting of roll adapted to be driven into roof boards and.

on the ther end a pointed member adapted to penetrate r011 roofing and having a neck, the upper fastening member being in the form of a hollow cleat having spring sides bent under and having oppositely disposed edges adapted to be forced over the pointed member and into the neck on the under fastening member, thereby locking the fastenmg memberstogether, for the purpose as described.

l. Means for fastening overlapping strips of roll. roofing to roofs, consisting of roll roofing fasteners each comprising under and upper fastening members, the under fastening member having an elongated thin body on one end of which is a pointed member adapted to be driven into roof boards, on the otherend a pointed member having a neck and. adapted to penetrate roll roofing and a short penetrating member adjacent the roof penetrating member and adapted to be forced into roll roofing, the upper fastening member being in the form of a hollow cleat having spring sides bent under with oppositely disposed edges forming a central disposed edges being adapted to spring over the pointed member and into the neck on the under fastening member, thereby locking the fastening members together, for the purpose as described.

5. In a two part fastening device for roll roofing, an upper fastener in the form of a hollow cleat having spring sides bent under with oppositely disposed edges forming a central space lengthwise of the cleat and 10 pointed members at each end of the cleat, for the purpose as described.

In testimony whereof, I have signed my name to this specification.

ALBERT ABBE GRISWOLD. 

